Okuma OSP 5000 - How to Troubleshoot a Fiber Optic Cable

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Okuma America Corporation
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Rev. 8-21-01
The following is information on how to troubleshoot a fiber optic cable.
The first step in checking a fiber optic cable is to do the light check. Simply put a light source
around one end of the fiber optic cable. If a light source is seen at the other end of the cabl
e
the cable is good. There will be some cases where the light source is seen but one of the tip
s
might be damaged causing an alarm. To check the tip of a fiber optic cable, a low cost slid
e
microscope can be used. The following are examples of tips that are either good or bad.
PASS
Perfect
The outside edge is
clean cut and a line that
is less than 2/3 of the
circumferenceof the
fiber itself.
A piece of the outside
edge is broken but is
less than 1/5 of the
circumference of the
fiber.
FAIL
A piece of the outside
edge is broken whick is
more than 1/5 of the
circumference of the
fiber.
The outside edge is
clean cut but a line that
is more than 2/3 of the
circumference of the
fiber itself.